Wiper adapter



FIG. 1 is a front, right, and top perspective view of a wiper adapter, showing my new design;

FIG. 2 is a rear, right, and bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left elevational view thereof;

FIG. 6 is a right elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a front, right, and top perspective view thereof with the cap portion opened.

The broken lines in the drawings depict portions of the wiper adapter and form no part of the claimed design. 

CLAIM The ornamental design for a wiper adapter, as shown and described. 